ATC SCM19A 2 way Active loudspeaker

ATC SCM19A 2 way active loudspeaker.

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What we Say:

The ATC SCM19A is an active 2 way floor standing loudspeaker.  The cabinet is the same size as the 40A, the top half contains the 19 litre speaker enclosure identical to the standard SCM19. The bottom half contains the active amp pack which consists of an active crossover and a 2 channel power amplifier. This provides 150W of power for the low frequency and 32W for the high frequency.

ATC design and make all their own drivers and crossovers in house. This no compromise approach ensures the very best quality whichever product you buy. The units use many innovative techniques to make sure they have great performance. The staff building these drivers often have decades of experience. Once built they undergo a rigorous test process before they are built into the product. The ATC product range is built to last.

The benefits of an active speaker are substantial. The ATC SCM19A features much lower distortion and greater dynamics than the passive version even when driven by a good power amplifier. Just add a source and pre amplifier such as the ATC CDA2 CD/pre-amplifier.

 

For reviews on the SCM19A check out the following reviews.

http://atcloudspeakers.co.uk/wp-content/uploads/2016/07/HFC_413_Exotica_ATC_Reprint-LOW.pdf

http://atcloudspeakers.co.uk/wp-content/uploads/2017/05/TAS_SCM19A_Review_05_2017.pdf

For more ATC products available from DNA.

https://dnaaudio.co.uk/product_brand/atc/

 

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What they say:

SCM19A

Manufactured in house to exacting tolerances, ATC’s drive units are legendary for their many design innovations.
For example, all voice coils are edgewise wound ribbon, OFHC (oxygen free high conductivity),
copper wire operating in a precision machined magnetic gap. The magnet assembly also has a hole through
the pole allowing air to be vented from under the dust cap reducing air flow noise at low frequencies
and at the same time increasing power handling and reliability.
Coloration is minimized by ensuring that the diaphragm assembly and drive system are
extremely well damped therefore eliminating unwanted resonances.
The unique Soft Dome technology that features in the midrange driver of the SCM40 floor-standing monitor
was developed by ATC in 1976. Its arrival revolutionised professional studio monitoring.
Remarkably today, as then, it remains the only midrange device capable of giving ultimate performance.
The Super Linear Technology found in the SCM19 model is equally ground-breaking.
It has long been recognised that the detrimental effects of magnetic hysteresis is a significant factor
in the production of distortion in loudspeaker drive units. With the clever use of revolutionary materials
developed for the communications industry the problem has been solved for all time in the form of
entry
ATC’s SL drive units.They are unique not only in their ability to accurately reproduce piano but also in the
precise manner they articulate the human voice. This is hardly surprising given the reduction in third harmonic
distortion by 10-15dB between 100Hz and 3KHz.
Constrained Layer Damping (CLD) is another new drive unit diaphragm technology from ATC that has been
integrated into the SCM11 monitor and represents a step-change in drive unit performance and the reproduction
of music. Performance improvements include reduced harmonic distortion between 300Hz and 3KHz, extended
frequency response and improved off-axis response.
The four passive and two active loudspeaker systems in the Entry Series are the first to employ ATC’s SH25-76
tweeter. Sharing technology with the renowned ATC Soft Dome midrange drive unit the new tweeter employs
a unique dual suspension system suppressing diaphragm rocking modes even at high output levels.
The ATC drive configuration of a short edgewise wound voice coil operating in a long magnetic gap ensures
exceptionally low distortion throughout its operating band and removes the need for ferrofluids which
can dry out over time and impair performance.
Built to give a lifetime of service and musical pleasure all ATC products carry a 6 year warranty

Overview

  • New ATC designed and built dual suspension 25mm soft dome HF unit with precision alloy wave guide.
  • “SL” spec bass driver with 75mm integral Soft Dome.
  • 9kg optimised short-coil/long gap motor assembly.
  • On-board grounded source 182 watt Class A/B Bi-amplifier.
  • Active crossover filters and overload protection.
  • 6 year warranty.